Details
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Bug
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Status: Resolved
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Minor
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Resolution: Cannot Reproduce
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2.17.3, 2.18.1
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None
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None
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Unknown
Description
We're occasionally seeing the following Mina exception on our production environment: "IllegalStateException: doDecode() can't return true when buffer is not consumed." (full stack trace below)
I haven't been able to reproduce the issue, and I don't fully understand the problem, but I think it's caused by duplicate messages (or specifically duplicate end byte markers) in the Mina IoBuffer that is read by Camel's HL7MLLPDecoder.
Full stack trace (with truncated hex dump):
org.apache.camel.CamelExchangeException: Error occurred in ResponseHandler. Exchange[ID-prdvpn01-zd-messaging-37296-1475153396916-0-335909]. Caused by: [org.apache.mina.filter.codec.ProtocolDecoderException - java.lang.IllegalStateException: doDecode() can't return true when buffer is not consumed. (Hexdump: 0B 4D 53 48 ... 0D 1C 0D 0B 4D 53 48 ... 0D 1C 0D)]
at org.apache.camel.component.mina2.Mina2Producer.doProcess(Mina2Producer.java:178)
at org.apache.camel.component.mina2.Mina2Producer.process(Mina2Producer.java:116)
at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:468)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at org.apache.camel.processor.MulticastProcessor.doProcessSequential(MulticastProcessor.java:681)
at org.apache.camel.processor.MulticastProcessor.doProcessSequential(MulticastProcessor.java:609)
at org.apache.camel.processor.MulticastProcessor.process(MulticastProcessor.java:238)
at org.apache.camel.processor.RecipientList.sendToRecipientList(RecipientList.java:170)
at org.apache.camel.processor.RecipientList.process(RecipientList.java:131)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:468)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62)
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:145)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:468)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:91)
at org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:112)
at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:721)
at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:681)
at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:651)
at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:315)
at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:233)
at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1158)
at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1150)
at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1047)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.mina.filter.codec.ProtocolDecoderException: java.lang.IllegalStateException: doDecode() can't return true when buffer is not consumed. (Hexdump: 0B 4D 53 48 ... 0D 1C 0D 0B 4D 53 48 ... 0D 1C 0D)
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:240)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:542)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:48)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:947)
at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:74)
at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTask(OrderedThreadPoolExecutor.java:770)
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTasks(OrderedThreadPoolExecutor.java:762)
at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.run(OrderedThreadPoolExecutor.java:704)
... 1 common frames omitted
Caused by: java.lang.IllegalStateException: doDecode() can't return true when buffer is not consumed.
at org.apache.mina.filter.codec.CumulativeProtocolDecoder.decode(CumulativeProtocolDecoder.java:184)
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:231)
... 9 common frames omitted